Monga m'modzi mwa otsogola opanga ndi ogulitsa makina opangira makina a Tunnel Boring Machine ku China, tikukulandirani ndi manja awiri kuti mugule kapena kugulitsa Zigawo Zamakina Zamakina a Tunnel Boring zomwe zili pano kuchokera kufakitale yathu. Zogulitsa zonse ndi zapamwamba komanso mtengo wampikisano. Lumikizanani nafe zitsanzo zaulere.
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